Dispensing device for dispensing batter and the like



March 2 1954 E. H. sJBLoM 2,670,881

DISPENSING DEVICE FOR DISPENSING BATTER AND THE LIKE Filed July 1o, 1951o 4 251g. l 13 e Patented Mar. 2, 1954 UNITED STATES DISPENSING DEVICEFOR DISPENSING BATTER AND THE LIKE Edvin Halvor Sjblom, Stockholm,Sweden, as-

signor to Sawa Fabriks Sweden,

Aktiebolag, Lessebo,

a joint-stock company of Sweden Application July 10, 1951, Serial No.236,031

Claims. 1

This invention relates to dispensing devices for dispensing batter andother substances for making cookies of exactly the same mutual volume.These known devices generally comprise a cylinder in which is slidable apiston for the extrusion through a mouth piece provided on the one endof the cylinder of batter lled in the cylinder. The piston is operatedby means of a toothed piston rod which is adapted to co-operate with anactuating device pivotally journalled on the otherv end of the cylinderand provided with a pawl which engages the teeth and, when operated,forces the piston rod step by step into the cylinder. Means are alsoprovided so as to engage after each step a tooth in order to prevent theundesired return of the piston. The mouth piece consists of a flangewith interchangeable dies, through the apertures of which the batter isextruded.

The invention relates to dispensing devices of the said kind andconsists of a device which is adapted to increase the capacity of thedevice and makes it possible to produce cookies of different size, shapeand thickness. This is of great importance, as diierent cookies are tobe made of different thickness or height.

The device according to the invention is principally characterized bythe feature that the piston rod is provided with two or more rows ofteeth with mutually different pitches so that it is possible, by usingone or other of them and by changing the mouth piece and dies, to varythe shape, the size and the thickness of the produced cookies.

The invention will be better described in the following specificationwith reference to the annexed drawing which by way of exampleschematically shows an embodiment of the invention. Fig. 1 shows alongitudinal section of a dispensing device according to the invention,and Fig. 2 the same section with the'lever handle in another position.

In the drawing, I denotes a cylinder, the anterior end of which isprovided with a mouth piece cap 3 adapted detachably to be iixed to thecylinder, by means of a lock device 2, whereby interchangeable dies 5may be inserted between the cylinder end and the cap. Said dies areprovided with apertures 4, the number, size and conguration of each maybe varied.

Reciprocably mounted in the cylinder I isa piston 'I having e, centralpiston rod 6 provided with toothing consisting of two rows I3 and 23 ofdilerent pitch. The piston rod 6 is journaled in an end cap on therearuend of the cylinder,

which cap is by means of a similar lock device 2 as for the mouth piececap detachably xed to the cylinder. The end cap 8' serves simultaneouslyas bearing for the actuating device for the piston rod 6.

On the end cap 8 there is by means of a bolt 9 pivotally journalled alever handle I0 which actua-tes an actuating pawl I2 which is pivotallyjournaled in the end cap 8 and pressed by spring I I. Said actuatingpawl I2 is adapted to engage with one of the tooth rows I3 or 23 on thepiston rod 6. `In order to prevent the rod from a return movement whenit is fed by means of the actuating pawl I2, in the cap 8 there isdisposed a spring means I4 which, when the piston rod is fed towards themouth piece, is sliding on the teeth I 3 or 23 respectively, but, assoon as the feeding movement has ceased, will engage that tooth on therod which actually happens to be above the lock spring I4. The leverhandle IE! is provided with notches 24a and 24h which a stop device 25is adapted to engage, the stop device 25 being urged therein by means ofa spring 26 which at its opposite end is connected to the handle I0. Thepiston rod 6 is .on its external free end provided with a handle, forinstance a transversal pin I6. By means of this pin the piston rod maybe turned so that itselectively may engage with the one or the other ofthe tooth rows I3 or 23 respectively and the feeding pawl I2. The pistonrod may be provided with two rows of teeth, or with a plurality of suchtooth rows. By turning the rod in such a position that the lock springI4 is disengaged from the tooth rows and slides on a plane surfaceprovided on the rod, the latter may be easily retracted to the initialposition of the piston at the rear end of the cylinder.

The pitch of the tooth rows on the rod may conveniently be chosen thusthat the length of two teeth on the one tooth row I3 is equal to theAlength of, three teeth on the other row 23. If in this case the stopdevice 25 is positioned as per Fig. l with the coarser tooth rowengaging the lock spring I Il, the rod 6 will at each pivoting movementof the lever handle I0 be fed one tooth in forward direction.

If, however, as shown in Fig. 2, the narrow tooth row 23 is in operatingposition, the piston rod will be fed one tooth forwards, provided thestop device 25 engages the notch 24a. When placing the said stop devicein the notch 24h, the handle Il! will perform a larger angular movement,and the rod will be fed two teeth forward.

By means of these different feeding movements it is possible to obtaindiierent volumes of the cookies extruded from the mouth piece. In orderto give them the correct shape, the space I7 between the inside of themouth piece die 5, the external edge of the cap 3 and the baking plateor the like must be adapted exactly to suit the volume of the extrudedbatter material. This may be done either by using mouth piece caps withdiiferent spaces l1 and plane dies 5, or by using one and the same mouthpiece cap with cup-shaped dies as per Fig. 2, either the concave or theconvex surface of which may be directed outwards. For the same purposethe depth of the cup-shaped portion of the die may be varied.

The dispensing device according to the invention is used in thefollowing way: After having inserted a die with appropriate apertures,and after having filled up the cylinder with a suitable quantity ofbatter, the piston is placed in its initial position and the externaledge of the mouth piece is placed upon a baking plate. By means of thehandle i0 the piston is then fed forwards and a suitable quantity ofbatter is extruded into the space between the baking plate and the mouthpiece die. Thus, there is formed a cocky of a certain shape and sizecontaining an exactly controlled quantity of batter in dependance of theshape of the apertures in the die and the pitch of the tooth row on thepiston rod. No manual treatment oi the extruded cookies is necessaryafter they have been extruded, and the batter extrusion is performedwithout touching the batter by hand, which ensures the greatest possiblehygienic treatment of the cookies at the same time as the work can bedone with the greatest possible exactitude and at a speed far higherthan that obtained with dispensing devices of the hitherto known kind.

The invention shall not be restricted to the embodiment shown in thedrawing and described in the above specification, but may be varied indiiferent respects without departing from the spirit of the invention orrestricting its scope. l What I claim as new and wish to protect byLetters Patent is:

1. A dispensing device for dispensing pasty substances for makingcookies, comprising in combination a cylinder, a mouth-piece mounted onsaid cylinder, a piston slidably disposed in said cylinder for extrudingthrough said mouth piece batter and the like from the cylinder, a pistonrod connected to said piston and provided with toothing along itssurface, an actuating means pivotally journaled on the rear end of saidcylinder and operatively engaging said toothing, said actuating meansincluding a lever handle and a pawl thereon engageable with the toothingin such a way that the piston is fed step by step, a locking deviceengageable after each actuating step with a tooth on the piston rod to 4prevent the undesired return of said piston, said mouth piece comprisinga mouth piece die with extrusion apertures therein and a mouth piece capadapted to secure said mouth piece die to the cylinder, said piston rodtoothing including a plurality of tooth rows of different tooth pitch,said piston rod being rotatable around its longitudinal axis to bringsaid tooth rows of different pitch selectively into engagement with saidactuating and locking devices whereby to feed the piston by steps ofVarious iength according to the pitch of the particular tooth row beingused.

2. Dispensing device according to claim 1, characterized by the featurethat a stop device is provided for selectively controlling the length ofstroke of the lever handle causing the forward movement of the pistonrod,

3. Dispensing device according to claim l, characterized by the featurethat a handle is provided on the external free end of said piston rodfor rotating said piston rod to disengage said locking device forpreventing the undesired return of the piston from the toothing ci thepiston, whereupon the rod together with the piston may be retracted fromthe cylinder.

d. Dispensing device according to claim l, characterized by the featurethat a plurality of said mouth piece dies of different congurations areselectively and interchangeably insertable in said mouthpiece cap andadapted to be combined in respect of their height, apertures and pitchwhereby, when moving the piston forward one step, a quantity of batteris extruded which corresponds to the volume of the space within theinner wall oi the mouth piece cap, the die and the surface upon whichthe extruded batter is deposited.

5. Dispensing device according to claim l, characterized by the featurethat cup-shaped dies are insertable into said cylinder whereby to modifythe space within the mouth piece cap and the mouth piece die, saidcup-shaped dies being selectively insertable into the cylinder witheither the concave or the convex side directed outwards. Y

EDVIN HALVOR SJBLOM.

References Cited in the file ofa this patent UNITED STATES PATENTSNumber Name Date 622,512 Murdich Apr. 4, 1899 1,672,421 Negley June 5,1928 1,737,783 Butler Dec. 3, 1929 1,802,067 Reif Apr. 21, 19311,850,965 Butler Mar. 22, 1932 2,125,258 Bagley `Ifuly 26, 1938 FOREIGNPATENTS Number Country Date 850,458 France Y.' Sept. '11, 1939

